Pretty Little Liars – Season 3, Episode 14 – Mona (Janel Parrish) is released from the sanitarium and returns to school, but she faces an uphill battle in which she must prove to Hanna (Ashley Benson), Aria (Lucy Hale), Emily (Shay Mitchell) and Spencer (Troian Bellisario) that she has transformed and can be trusted.
(January 8, 2013 - Source: ABC Family)